The Koaloha KTM-00 is a tenor sized ukulele featuring a solid koa body, sapele neck, ebony fretboard and crown shaped bridge.
I have been playing and collecting ukuleles for a few years now and I have had a lot of ukes pass through the collection including several very high dollar custom instruments. I've got to say that I have been very impressed with the Koaloha and it certainly sounds on par with the best tenors I have played. So much so that it has found a permanent slot in the collection.
It is a very comfortable instrument to play. It feels good in my hands. The fretboard is bound so you don't have to deal with sharp fret ends and also it has a nice rounding around the edge. They don't use a flashy grade of koa so the wood can look a little "boring" in comparison to other ukes but apparently they are more concerned with sound than looks. The looks are no slouch however - the tenor models feature the distinctive "crown shaped" bridge which mimics the headstock.
If someone were to ask me what the best production uke they could buy is I would point them to a Koaloha.